Home / 101,075.27-139,484.85-55,755.17

Finding the Fourth Proportional to 101,075.27, 139,484.85 and 55,755.17

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Solution

The fourth proportional to 101,075.27, 139,484.85 and 55,755.17 is: 76,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,075.27 : 139,484.85 = 55,755.17 : x
  2. Step 2: Convert to fraction form
    101,075.27/139,484.85 = 55,755.17/x
  3. Step 3: Cross multiply
    101,075.27x = 139,484.85 × 55,755.17
  4. Step 4: Simplify right side
    101,075.27x = 7,777,000,757.06
  5. Step 5: Solve for x
    x = 7,777,000,757.06/101,075.27
  6. Step 6: Final answer
    x = 76,942.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.